NPI age
11 years
Enumerated 2014-07-18
● Active
Type 1 · Individual
DR. Guillermo Leoz-Callizo, MD
Leoz-Callizo is 1 of 876 psychiatry & neurology providers in Houston and 1 of 4391 in Texas.
Primary specialty
Psychiatry & Neurology
Plus 1 subspecialty
Licensed in
TX, MN
2 states
Status
Active
No deactivations on record
Last NPPES update
2026-02-19
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 4391 active psychiatry & neurology providers in Texas.
NPI age
11 years
↓ 5 yr below median (16 yr)
State licenses
2 states
Top 87% — 12% of peers are multi-state
Subspecialties
0
34% of peers hold subspecialties
NPI lifetime · 2014 → 2026
2014-07Enumerated in NPPES
2014
2026
Where they practice
Practice location
1415 California St
Houston, TX 770062602
Mailing address
6255 W Sunset Blvd Fl 21
Los Angeles, CA 900287422
Additional practice locations
2 secondary locations on file with NPPES.
Location 2
400 N Beach St Ste 104
Fort Worth, TX 761117070
Location 3
4301 Garth Rd, Ste 302, 306, & 400
Baytown, TX 775213153
Specialties
-
Psychiatry & Neurology PrimaryA Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders...
Practice context
Part of a multi-provider practice. 137 other active providers share this practice address in NPPES.
Recently enumerated nearby: 10 new psychiatry & neurology providers have been added in Houston in the last 180 days.
See all →
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